package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {

    /**
     * 查询购物车
     * @param shoppingCart
     * @return
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);


  

    /**
     * 插入到购物车
     * @param shoppingCart
     */
    void insert(ShoppingCart shoppingCart);
    /**
     * 份数加一
     * @param shopping
     */
    @Update("update shopping_cart set number=#{number} where id=#{id}")
  void update(ShoppingCart shopping);

    /**
     * 清空购物车
     * @param userId
     */
    @Delete("delete from shopping_cart where user_id=#{userId}")
    void delete(Long userId);
    /**
     * 根据id删除购物车数据
     * @param id
     */@Delete("delete from shopping_cart where id = #{id}")
    void deleteById(Long id);
    /**
     * 批量插入购物车数据
     *
     * @param shoppingCartList
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);
}
